1725005 has 4 divisors (see below), whose sum is σ = 2070012. Its totient is φ = 1380000.

The previous prime is 1724999. The next prime is 1725011. The reversal of 1725005 is 5005271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5005271 = 89 ⋅56239.

It is an interprime number because it is at equal distance from previous prime (1724999) and next prime (1725011).

It can be written as a sum of positive squares in 2 ways, for example, as 1075369 + 649636 = 1037^2 + 806^2 .

It is not a de Polignac number, because 1725005 - 2¹² = 1720909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172496 + ... + 172505.

It is an arithmetic number, because the mean of its divisors is an integer number (517503).

2^1725005 is an apocalyptic number.

It is an amenable number.

1725005 is a deficient number, since it is larger than the sum of its proper divisors (345007).

1725005 is an equidigital number, since it uses as much as digits as its factorization.

1725005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345006.

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 1725005 is about 1313.3944571225. The cubic root of 1725005 is about 119.9306312038.

The spelling of 1725005 in words is "one million, seven hundred twenty-five thousand, five".